This is why they do the introductory offer to test the system out some I guess, seems fair even the biggest companies need revisions to a system to refine it. I'm able to sign and be in the account but also I'm waiting for the confirmation email to arrive so I can confirm my balance and the bonus is there or not. Maybe it doesnt like my address, I'll try another one shortly if no joy
The testing should ideally be done before the website goes live. If website is live and one of the customers makes a huge win through a bug, it could be a potential loss for the website or the customer the other way around. It's a common ideology to stress test your servers and do end-end testing before shit goes live especially when you're going to be dealing with someone else's money.